Detached-eddy simulations of synthetic jets for high-angles-of-attack airfoils

Yuichi Ishibashi, Koji Miyaji

    • 1 Citations

    Abstract

    This study investigates the performance of detached-eddy simulation to simulate the flow control by a synthetic jet around an airfoil. The effect of the jet exit angle is focused on. The detached-eddy simulation approach is first validated with a nonblowing, high-angle-of-attack case. Flows around aNACA0012 airfoil including the synthetic jet cavity and its orifice at 10% chord location are then simulated at 12 deg angle of attack and Reynolds number of 105. The jet exit angles of 45, 60, 75, and 90 deg have been studied. Massively separated flows were eliminated in all cases. The angles of 45 and 60 deg successfully recovered stably attached flow over the airfoil with small amplitude of the aerodynamic forces, while the flow unsteadiness due to remaining separation is observed at higher jet exit angles, resulting in large amplitude of the drag force.

    Original languageEnglish
    Pages (from-to)168-175
    Number of pages8
    JournalJournal of Aircraft
    Volume52
    Issue number1
    DOIs
    StatePublished - 2015 Jan 1

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    Airfoils
    Angle of attack
    Orifices
    Flow control
    Drag
    Aerodynamics
    Reynolds number

    ASJC Scopus subject areas

    • Aerospace Engineering

    Cite this

    Detached-eddy simulations of synthetic jets for high-angles-of-attack airfoils. / Ishibashi, Yuichi; Miyaji, Koji.

    In: Journal of Aircraft, Vol. 52, No. 1, 01.01.2015, p. 168-175.

    Research output: Contribution to journalArticle

    Ishibashi, Yuichi; Miyaji, Koji / Detached-eddy simulations of synthetic jets for high-angles-of-attack airfoils.

    In: Journal of Aircraft, Vol. 52, No. 1, 01.01.2015, p. 168-175.

    Research output: Contribution to journalArticle

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